Avaya AP-4 User Manual page 176

Security
802.1x
IEEE 802.1x is a standard that provides a means to authenticate and
authorize network devices attached to a LAN port. A port in the context
of IEEE 802.1x is a point of attachment to the LAN, either a physical
Ethernet connection or a wireless link to an Access Point. 802.1x requires
a RADIUS server and uses the Extensible Authentication Protocol (EAP)
as a standards-based authentication framework, and supports automatic
key distribution for enhanced security. The EAP-based authentication
framework can easily be upgraded to keep pace with future EAP types.
Popular EAP types include:
EAP Types
EAPoL (EAP over
LAN):
EAP-Message Digest 5
(MD5):
EAP-Transport Layer
Security (TLS):
4-92
Description
Transport protocol used to negotiate the
wireless user's secure connection to the
network. EAP messages are
encapsulated in 802.1x messages.
Username/Password-based
authentication; does not support
automatic key distribution.
Certificate-based authentication (a
certificate is required on the server and
each client); supports automatic key
distribution
Avaya Wireless AP-4/AP-5 User's Guide